This feature has been introduced in an update that has begun rolling out today. As is the case with most updates to Google apps, this update which brings Questions and Answers section to Google Maps might take a few days to reach all the users.

What Is the Questions and Answers Section on Google Maps?

The Questions and Answers section has been made keeping in mind that users often tend to Google for questions regarding places on Google Search. However, there are some answers which can actually be better answered by the community of users. This would also open doors for organizations to communicate with prospective customers and/or visitors better. The introduction of Questions and Answers Section on Google Maps is a good feature as it empowers the users to interact with the businesses in a better, more meaningful way. Do let us know in the comments below if you find it to be a useful update. Source: Google Blog